Skill Claude CodeCodex
Pure-code procedural graphics, sprite generation, and visual effects (VFX) guide for 2D games. Generates sprites, tilesets, particle systems, and vector shapes in memory without external image files, enforcing 2D matrix transformation order, sub-frame animation easing, and pre-allocated particle pools. Activate when…
Skill Claude CodeCodex
Pure-code procedural audio synthesis guide for sound effects (SFX) and polyphonic background music (BGM) in games. Generates 16-bit stereo PCM audio in memory without external audio files, featuring multi-channel polyphonic composition, ADSR envelopes, frequency modulation, and declarative JSON sound definitions with…
Skill Claude CodeCodex
2D sprite sheet management, frame animation sequencing, and Aseprite integration guide for games. Covers sprite grid slicing, animation state machines (idle, walk, attack, death), frame duration timing, tag loops, and Go animation controllers in Ebitengine. Activate when slicing sprite sheets, configuring character…
Skill Claude CodeCodex
Master orchestrator and workflow router for building 2D games in Go with Ebitengine. Coordinates the full game development lifecycle across concept design (GDD creation), engine architecture, asset pipelines (pure-code procedural vs. AI-generated media), animation controllers, and WebAssembly deployment. Activate when…
Skill Claude CodeCodex
Generative music and audio synthesis from text prompts or reference images using Google Lyria 3 models. Generates 44.1 kHz stereo music clips, full songs with custom lyrics, and instrumental soundtracks using lyria-3-clip-preview and lyria-3-pro-preview, with support for multimodal image inputs and MP3/WAV export.…
Skill Claude CodeCodex
Conversational image generation and multimodal image editing tool using Google Nano Banana models. Generates high-resolution images (1K, 2K, 4K), performs style transfers and image edits ("banana this"), and maintains character or style consistency using multi-image reference inputs. Activate when generating…
Skill Claude CodeCodex
Guide and template for authoring and maintaining Architecture Decision Records (ADRs). Captures structural decisions, background context, trade-offs, and compliance verification in lightweight, immutable markdown records to preserve engineering context. Activate when making significant architectural choices…
Skill Claude CodeCodex
Compliance and licensing guide for Google Open Source repositories and personal open-source projects published by Googlers. Enforces source file license headers (such as Apache-2.0) using addlicense, verifies license files, inserts required non-official product disclaimers, and audits pre-release compliance. Activate…
Skill Claude CodeCodex
Collaborative design proposal framework and template for Request for Comments (RFC) documents. Structures technical design proposals, explores alternative solutions, documents spikes and open questions, and tracks proposal lifecycle states before formalizing decisions into ADRs. Activate when proposing major features…
Skill Claude CodeCodex
Manage, draft, schedule, and publish social media content across connected channels (such as LinkedIn, X/Twitter, Bluesky, and others) using the Buffer CLI (@bufferapp/cli). Covers account and channel inspection, queue scheduling with dry-run safety validation, draft ideas management, and GraphQL schema introspection.…
Skill Claude CodeCodex
Editorial guidelines and rewriting workflow for purging text of AI clichés, tropes, and formulaic filler. Identifies and removes overused AI vocabulary (such as delve, tapestry, seamlessly), negative parallelism, dramatic countdowns, and repetitive summaries to restore natural human cadence. Activate when rewriting…
Skill Claude CodeCodex
Style guide, legal compliance standards, and validation workflow for the Google Developers Blog. Enforces technical readability targets (Fog Index 12–15), professional tone, inclusive language, legal compliance, and style linting via Vale and Speedgrapher. Activate when drafting, editing, reviewing, or validating…
Skill Claude CodeCodex
Structural guide and editorial model for organizing technical articles, developer documentation, and READMEs. Applies the Inverted Pyramid model to place high-value summaries and actionable quickstarts first, cascading down to usage workflows, architectural details, and compliance. Activate when structuring technical…
Skill Claude CodeCodex
Technical SEO and Generative Engine Optimization (GEO) guide for developer docs and engineering blogs. Optimizes content for search engines and AI answer engines (Google AI Overviews, ChatGPT, Perplexity), splits human summary from search description metadata, verifies JSON-LD structured data (TechArticle), and…
Skill Claude CodeCodex
Editorial workflow and platform playbooks for drafting developer-native social media copy and campaigns. Extracts technical evidence via git log inspections or /grill-me interviews, establishes a canonical foundation narrative (CANONICAL.md), tailors derivatives for connected platforms (such as LinkedIn, X/Twitter…